/* 点击高亮我们需要清除 设置为transparent 完成透明 */
*{
    -webkit-tap-highlight-color: transparent;
}
/* 在移动端浏览器默认的外观在ios上加上这个属性才能给按钮和输入框自定义样式 */
input{
  -webkit-appearance: none;
}
/* 禁用长按页面时弹出的菜单 */
img,a{
    -webkit-touch-callout: none;
}
*{
    margin: 0;
    padding: 0;
}
body{
    min-width: 320px;
    max-width: 414px;
    margin: 0 auto;
    background-color: #fff;
    font-size: 14px;
    line-height: 1.5;
    font-family: -apple-system,Helvetica,sans-serif;

}
a{
    text-decoration: none;
    color: black;
}
/* 头部部分开始 */
header{
    width: 100%;
    height: 50px;
    background-color: #f8f8f8;
}
header p{
    font-size: 20px;
}
header span{
    display: block;
    margin: 15px 15px ;
    font-size: 40px;
    font-weight: bold;
}
/* 头部部分结束 */

/* 主体部分开始 */
.iot_logo{
    width: 100%;
    height: 350px;
    display: flex;
}
.iot_logo img{
    width: 130px;
    height: 130px;
    margin: auto;
}

.iot_logon{
    position: relative;
    display: flex;
    width: 100%;
    height: 50px;
}
.iot_logon button{
    border-radius: 25px;
    background-color: #5bb89d;
    width: 90%;
    height: 100%;
    margin: auto;
    font-size: 20px;
    color: white;
    border: none;
}
.iot_logon  span img{
    position: absolute;
    display: block;
    left: 115px;
    top:13px;
    width: 20px;
    height: 24px;
}
.iot_other{
    display: flex;
    flex-wrap: wrap;
    box-sizing: border-box;
    width: 100%;
    height: 170px;
}
.iot_other_text{
    box-sizing: border-box;
    padding-top: 30px;
    font-size: 16px;
    width: 100%;
    height: 70px;
    text-align: center;
    color: #8b8989;
}
.iot_other_button{
    display: flex;
    flex-wrap: wrap;
    box-sizing: border-box;
    width: 100%;
    height: 70px;
}
.iot_other_button button {
    background-color: transparent;
    width: 70px;
    height: 70px;
    border-radius: 100%;
    border: 1px solid black;
    margin: auto;

}
.iot_other_button button img{
    width: 35px;
    height: 40px;
    border-radius: 100%;
}
.iot_other_button p{
    margin-top: 10px;
    width: 100%;
    height: 30px;
    text-align: center;
    font-size: 16px;
}
/* 主体部分结束 */


/* 底部部分开始 */

footer{
    width: 100%;
    height: 50px;
    position: fixed;
    bottom: 0;
    text-align: center;
    color: #747272;
}
/* 底部部分结束 */